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RESISTORS

resistor

Resistors are fundamental electronic components that play a crucial role in electrical circuits. They are passive devices specifically designed to introduce resistance into a circuit, limiting the flow of electric current. Resistors are used for various purposes in electronic and electrical systems, making them one of the most commonly employed components in electronics.

Some Common Types of Resistors:

  1. Fixed Resistors:
    • Carbon Composition Resistors: These are one of the oldest types of resistors and are made by mixing carbon granules with a binder material. They are known for their low cost but have limited precision and stability.
    • Metal Film Resistors: Metal film resistors consist of a thin layer of metal, usually nickel-chromium, deposited onto a ceramic substrate. They offer higher precision, stability, and lower noise compared to carbon composition resistors.
    • Metal Oxide Resistors: These resistors use a metal oxide film, often tin oxide, as the resistive element. They provide good stability, higher power ratings, and are commonly used in power electronics.
    • Wirewound Resistors: Wirewound resistors are made by winding resistance wire, usually nichrome, around a ceramic or fiberglass core. They offer high precision, high power handling, and are often used in precision applications.
  2. Variable Resistors (Potentiometers):
    • Rotary Potentiometers: These adjustable resistors use a rotary knob to manually change the resistance value. They are commonly used for volume control and tuning in audio equipment.
    • Slide Potentiometers: Similar to rotary potentiometers, slide potentiometers use a linear slider to adjust resistance. They are commonly used in applications such as audio mixers.
  3. Specialized Resistors:
    • Thermistors: Thermistors are resistors whose resistance varies significantly with temperature. They are used for temperature measurement and control in applications such as thermostats and temperature sensors.
    • Light-Dependent Resistors (LDRs): LDRs have resistance that changes with light intensity. They are used in light-sensitive applications such as streetlights and camera exposure control.
    • Varistors: Varistors are nonlinear resistors that change their resistance with voltage. They are commonly used for surge protection in electronic circuits.
    • Resistor Arrays: These are multiple resistors housed in a single package, often with common pins. They are used in integrated circuits and precision applications.
  4. Surface Mount Resistors (SMD):
    • Surface mount resistors are designed for surface mount technology (SMT) applications, where components are mounted directly onto the surface of a printed circuit board (PCB). They are available in various sizes and technologies, including thick-film, thin-film, and chip resistors.
  5. Power Resistors:
    • Power resistors are designed to handle high levels of power dissipation. They are used in high-current or high-voltage applications, such as power amplifiers and power supplies.
  6. Precision Resistors:
    • Precision resistors are engineered for accuracy and low tolerance levels. They are used in precision instruments, measurement equipment, and critical circuits where accuracy is paramount.
  7. Film Resistors:
    • Film resistors, including metal film and carbon film resistors, are known for their stability, precision, and reliability.
  8. Network Resistors:
    • Network resistors consist of multiple resistors in a single package, often used in divider and bridge circuits.

Resistor Products

We offer a broad selection of precise, stable, and reliable resistors designed to meet the requirements of a wide range of electronic and electrical applications. Our resistor portfolio includes multiple configurations, resistance values, power ratings, tolerances, and package types for both standard and specialized applications.

Our resistor selection includes products suitable for industrial, automotive, power electronics, consumer electronics, telecommunications, and other demanding applications. These products are available in a variety of technologies, including wirewound, metal film, thick film, thin film, current sense, surface mount, and high-power resistors.

  • Wire Wound Resistors
  • SMD Resistors
  • Low OHM Resistors
  • Current Sense Resistors
  • Metal Film Resistors
  • Metal Oxide Resistors
  • Thick Film Resistors
  • High Power Resistors
  • Surface Mount Resistors
  • Precision Resistors
  • Automotive Resistors
  • Custom Resistor Solutions
Ohm’s Law Calculator

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Calculates voltage, current, resistance and power using Ohm’s Law and the relationships between them.

Resistor Manufacturers

We actively stock and source resistor products from a variety of established manufacturers, including:

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